Thermally-controlled audible signal



Aug. 7, 1923.

e. A. SAGER THERMALLY CONTROLLED AUDIBLE SIGNAL Filed June 8 1921 1 6-11 6a def.

Patented '7, l923 GEORGE A. SAGER, O JQLBANY, IIEVJ YORK.

THERMALLY-CONTEOLTJED AJDIBLE SIGNAL.

Original application filed March 4t, 1929, Serial No. 383,256. Flivicled and this application filed June 8,

1921. Serial No. 475,969.

To (LI/Z 207x077 it may concave: tering a cylindrical chamber 78 which con- Be it known that l, Gnonon it. SAGER, nects with the inlet M. The chamber '78 is citizen oi the United States residing provided with. a boss 79 recessed as shown at Albany, in the county of Albany and State 80 to provide a seat 81 having a ball valve 5 of New York, have invented certain new 82 which normally is maintained otl' its seat and useful Improvements in Thermally-Conby gravity in order that the chamber 78 may trolled Audible Signals of which the followbe kept clear of water of condensation. The

inp; is a specification. pipe 2 is sloped toward the opening); 74 and This invent-ion relates to an improved will thus also be relieved of water of con- 10 thermally controlled audible signal for low densation by means of the ball valve 8:2. The

water safety tell-tales, being" a division oi? lower end of the'chamber 78 is closed by a my pending application for low water member 83 threaded thereinto as indicated safety tell-tales, filed March 42;, 192th Serial at and chambered on the lower end as at No. 363,206. 85 to receive a button 86 having a stem 87.

w Among; other objects, the invention seeks lilaintainina' the button in proper relation to 7 to provide a device for audibly apprising an ,the member 83 is a cotter pin passing engineer of the existence of a low water level through the end of the stem which is located and wherein the signal may be manually in the chamber 73 and a spring 89 keeps the rendered inoperative so that after the signal stem in its lowermost position. Within the so has served its purpose; the sounding otthe c iamber T8 is a loosely fitting plunger 90 i l may b t d having; a valve end 91. As steam enters the Other and incidental. objects will appear inlet 74. the whistle 76 is blown by the hereinafter. sage of the steam through the outlet 77. In the drawing: However, since it is not necessary that this i Figure 1 a side elevation of a locomotive whistle continue to blow, as its continuous boiler with a portion of the shell thereof blowing might obscure other significant broken away to show the interior, this w sounds, means are provided for cutting out illustrating the signal of the present inventhe operation of the signal. In. order to action in conjunction with the thermally concomphsh this the buttpn 86 is pressed up- ZNi trolled valve illustrated in my prior appliwardly and the stem 84 carries with 1t the 83 cation referred to, and loosely fitting plunger 90, the valve end 91 Figure 2 is a side elevation, partly in secof which closes the opening it and cuts out ti of th ign l, the operation of the whistle l6. Arter presslileferring now more particularly to the ing the loosely fitting plunger to its updrawing, 1 have, for convenience, shown my ward position the stem 87 may be released 90 improved signal. in connection with a loco but the plunger will remain in its upward motive boiler A, the portion oi the boiler position due to the fact that by reason oi? shown being broken away to illustrate the e 10093 fit f h Pl g pressure then ob- 'own sheet, 1 jypproximate the and aid toms beneath the plll'flgcl? :Wltll ill?) lCSlllt to sheet is disposed a thermally actuated valve that saidplunger is maintained n the up 95 B Si thi o forms th bj t t ward pgsition cutting off actuation of the t f my prior li ti previously id whistle 16. hen the valve B closes, cutting; tified. it need not be herein described in de- Oil; t st r pressure in the pipe 2, the mi], it being ffi i t 1-, t t th t upon plunger 90 will then return by gravity to the occurrence of a low water level in the its lowermost position. In order to properly boiler. the valve will automatically operate ilttfifll i119 L T 99 P d ch. t di it Steam f th b il through 11 receives a bolt 93 'tor SGCUIITIQ the signal. at pipe 2, and mounted upon this pipe the W filial-V10 106M101} signal of the present invention, indicated as Y Q NI prlbed the invention, what 5a a whole by the letter C. This signal will S Claimed as 6 8: now be described in detail. 1. A low water satiety tell-tale comprising Connected with the pipe 2 is the inlet 74- in combination with a steam generator, a f a asi 75 and secured to the top porthermally operated valve. an. audible signal tion oi said casing is a steam whistle 7G a steam line controlled by said valve and 55 which communicates with a passage 47 enhaving a connection with said signal and 11 sloping toward the latter whereby water of condensation occurring in the said steam line gravitates towards said "signal, and means automatically relieving the steam line and signal of such water.

2. A low water safety tell-tale comprising in combination with a steam generator, a thermally operated valve, an audible signal, a steam line controlled by said valve and having connection with said signal and draining toward the same whereby the water of condensation accumulating in said steam line gravitates toward said signal, and signal controlling means including 'means relieving said steam line of such water.

3. A low water safety tell-tale including a casing having a steam inlet and outleua plunger mounted for free individual movement in the casing to 'coact with said outlet cutting off flow of steam therethrough', and means for shifting the plunger. 1

4. A low water safety tell-tale including "a casing having a steam inlet and outlet, a plunger mounted in the casing to coact with said outlet cutting off flow of steam therethrough and adapted to be held closed by steam pressure, and means for shifting the plunger. I

5. A low water safety tell-talefincludi'ng a casing having a steam inlet and outlet, a plunger mounted in the casing to coact with said outlet cutting off flow of steam therethrough and adapted to be held closed by steam pressure, and manually operable means for shifting the plunger to closed position.

6. A low water safety tell-tale including a casing having a steam inlet and outlet, a plunger mounted in the casing to co'act with said outlet cutting off flow of steam there through and adapted to be held closed by steam pressure, and a rod for shifting the plunger to closed position.

7. A low water safety tell-tale including a casing having a steam inlet and outlet, a plunger shiftable in the casing to coact with said outlet cutting off flow of steam there through, the plunger being loosely mounted in the casing whereby steam may flow past the plunger to act thereagainst for holding i the plunger closed, and means for shifting the plunger.

8. A low water safety tell-tale including a casing having a steam inlet and outlet, a plunger shiftable in the casing to coact with said outlet cutting off flow of steam therethrough, means for shifting the plunger and means relieving the casing of water of condensation. H

9. A low water safety signal including a casing having an outlet, a fluid operated telltale connected with the casing, a plunger within the casing shiftable to closed position coacting with said outlet held closed by fluid pressure rendering the telltale inactive and automatically shiftable to open position when the fluid pressure is relieved, and means for shifting the plunger to closed position. y I

10. 'A low water safety signal including a casing having an outlet, a fluid operated tell-tale operatively connected with the cas GEORGE A. sAeER. [1,. 8.] 

